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ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE
CAUTION: Electrostatic discharge can affect electronic
components. Take precautions during furnace installation
and servicing to protect the furnace electronic control and
motor. Precautions will prevent electrostatic discharges
from personnel and hand tools which are held during the
procedure. These precautions will help to avoid exposing
the control to electrostatic discharge by putting the
furnace, the control, the motor, and the person at the same
electrostatic potential.
1. Disconnect all power to the furnace. DO NOT TOUCH
THE CONTROLS OR ANY WIRE CONNECTED TO
THE CONTROLS PRIOR TO DISCHARGING YOUR
BODY’S ELECTROSTATIC CHARGE TO GROUND.
2. Firmly touch a clean, unpainted, metal surface of the
furnace chassis which is close to the controls. Tools held in
a person’s hand during grounding will be satisfactorily
discharged.
3. After touching the chassis you may proceed to service the
controls, motor, or connecting wires as long as you do
nothing that recharges your body with static electricity (for
example; DO NOT move or shuffle your feet, DO NOT
touch ungrounded objects, etc.).
4. If you touch ungrounded objects (recharge your body with
static electricity), firmly touch furnace again before touch-
ing control or wires.
5. Use this procedure for installed and uninstalled (un-
grounded) furnaces.
6. Before removing a new control or motor from its container,
discharge your body’s electrostatic charge to ground to
protect the control or motor from damage. If the control or
motor is to be installed in a furnace, follow items 1 through
5 before bringing the control, or motor, or yourself into
contact with the furnace. Put all used AND new controls
and motors into containers before touching ungrounded
objects.
7. An ESD service kit (available from commercial sources)
may also be used to prevent ESD damage.
CARE AND MAINTENANCE
For continuing high performance and to minimize possible equip-
ment failure, it is essential that periodic maintenance be performed
on this equipment. Consult your local dealer as to the proper
frequency of maintenance and the availability of a maintenance
contract.
WARNING: Never store anything on, near, or in contact
with the furnace, such as: 1. Spray or aerosol cans, rags,
brooms, dust mops, vacuum cleaners, or other cleaning
tools.
2. Soap powders, bleaches, waxes or other cleaning
compounds, plastic or plastic containers, gasoline, kero-
sene, cigarette lighter fluid, dry cleaning fluids, or other
volatile fluids.
3. Paint thinners and other painting compounds, paper
bags or other paper products.
A failure to follow this warning could result in corrosion
of the heat exchanger, fire, personal injury, or death.
WARNING: Turn off the gas and electrical supplies to
the unit before performing any maintenance or service on
it. Follow the operating instructions on the label attached
to the furnace. A failure to follow this warning could
result in personal injury.
CAUTION: As with any mechanical equipment, per-
sonal injury can result from sharp metal edges, etc.;
therefore, be careful when removing parts.
The minimum maintenance that should be performed on this
equipment is as follows:
1. Check and clean air filter each month or more frequently if
required. Replace if torn.
2. Check blower motor and wheel for cleanliness each heating
and cooling season. Clean as necessary.
3. Check electrical connections for tightness and controls for
proper operation each heating season. Service as necessary.
CAUTION: If motor is removed from blower assembly,
the motor MUST be reinstalled so arrow on end of the
motor is pointing in the direction of airflow through the
furnace. The belly band MUST be the specified distance
from the motor end shield surface at the shaft end. (See
Fig. 3.)
A. Air Filter Arrangement
The air filter arrangement may vary depending on the application.
Refer to Table 1 for filter size information.
WARNING: Never operate unit without a filter or with
filter access door removed. A failure to follow this
warning could result in fire, personal injury, or death.
1. Upflow and horizontal.
Each furnace requires 1 or 2 filters which are installed in the
blower compartment. (See Fig. 4.) To remove filters for
cleaning or replacement, proceed as follows:
Fig. 3—Motor Belly Band Location
DIMENSIONS (IN.)
FURNACE SIZE D
036060 1
048080 1-1/2
060100 3
060120 3
A95268
D
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